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Re: Edge lit LED TV vs. Full array LED

The main difference between them and ones with backlights behind the screen is the thickness of the set. Picture wise there shouldn't be much if any difference. Edge lit sets are usually more expensive than equivalent normal backlight sets too.

Re: Edge lit LED TV vs. Full array LED

Originally Posted by randomuser111

^

Nope. These cheap full array LEDs use lesser LEDs than EDGE LED models and as such have poor PQ. You can check the reviews on any website.

I am saying they may not have great picture quality of higher end edge lit model due to absence of local dimming but screen uniformity is much better in back lit models.you will see black in black scenes not gray.
See this LED Backlighting vs. Edgelighting | Home Theater

Originally Posted by reniarahim1

No..What these low cost Samsung LED TVs use is Direct LED which is no where near to the Edge LEDs. See the below links ->

Re: Edge lit LED TV vs. Full array LED

Originally Posted by Minion

I am saying they may not have great picture quality of higher end edge lit model due to absence of local dimming but screen uniformity is much better in back lit models.you will see black in black scenes not gray.
See this LED Backlighting vs. Edgelighting | Home Theater

You can see advantages of direct lit tvs over edge lit tv when playing a dark scene in both tvs.In tv world what you pay for is what you get.

One more thing i found is more contrast in led back lit model than old CCFL.

Sony is selling three types of led tvs they are EX series are edge lit models,HX series are dynamic edge lit models (having local dimming features),HX 925 uses full led with local dimming.

if you are saying direct lit led is a cheaper tech then why sony HX 925 is using it.

LG WRman Greg here!

There seems to be a bit of confusion with Direct-lit LED vs. Full-array LED. Both Direct-lit LED and Full-array LED have the LED backlights directly behind the panel as opposed to Edge-lit LED, which have the LED backlights on the edge of the panel while utilizing a light diffuser to (hopefully) evenly distribute the light throughout the screen. The main difference between Direct-lit LED vs Full-array LED is the number of LED lights used. Direct lit LED TVs have much fewer LED lights to use as a backlight. Due to this, the LED lights must be placed a bit further back than with edge-lit or Full-array LED TVs. This creates a bulkier size; however, the cost is significantly reduced while still retaining some of the benefits of having the backlight placed behind the panel.

So if you were to assume that all LEDs used in TVs are the same (which they are not, but I'm just giving an example), in terms of screen uniformity, banding, etc., you can consider it this way: Edge-lit < Direct-lit < Full-array. However, as randomuser111 has said, not all LED lights are the same, so there will always be high-end Edge-lit TVs that perform better than Direct-lit TVs depending on the quality of the backlights. For example, the LM8600 uses an Edge-lit LED backlight, but the picture quality is still superb.

Re: Edge lit LED TV vs. Full array LED

In edge lit LED TVs, the backlight for the LCD screen is provided by LEDS arranged along the edge of the panel. In the full array LED versions, the LEDs are arranged along the whole background of the screen. There is indeed a difference in performance of Edge Lit LED TVs vis-a-vis Full Array LED TVs - mostly in terms of contrast levels and brightness. In full array models, the LEDs in individual segments can be dimmed to create higher contrast. In the same way, since the whole screen background is lit, the brightness is also better. For these two reasons, full array LED TVs are considered to impart a better quality. However, since the number of LEDs needed are many times higher, it invariably leads to significant cost increase - hence this type of TV is more expensive. At present, there are no full array LED TV models in India (of any brand). However, LG is soon expected to introduce LG LM9600 (sometime around Diwali) - this will definitely be the first Full Array LED TV in India.